A uniform hole in a brass plate has a diameter of 1.2 cm at 25∘C 25^{\circ} \mathrm{C} . What is the diameter of the hole when the plate is heated to 475∘C 475^{\circ} \mathrm{C} ? (Use the coefficient of linear thermal expansion for brass = = 19×10−6 K−1 19 imes 10^{-6} \mathrm{~K}^{-1} )

Question

A uniform hole in a brass plate has a diameter of 1.2 cm at 25∘C 25^{\circ} \mathrm{C} . What is the diameter of the hole when the plate is heated to 475∘C 475^{\circ} \mathrm{C} ? (Use the coefficient of linear thermal expansion for brass = = 19×10−6 K−1 19 	imes 10^{-6} \mathrm{~K}^{-1} )

Accepted Answer

গ. 1.21 cm

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